please, have mercy, they begged. on the street, we meet four boys. they ask if we think it is safe enough for them to go back home. they talk of tanks firing, and seeing other children lose limbs. they say, what they have witnessed have made them all decide to be doctors. to save the victims of war. >> all right, thank you very much, that was cnn's arwa damon reporting from war-torn aleppo, syria. >>> and attackers beg released from duty, often times without prosecution, we'll discuss this disturbing situation straight ahead, but first. >>> a navy seal leaves the service, but still feels a call to serve, now he feels the need to help. >> for me being in the military was one of the greatest experiences of my life. because i was working with incredible men and women, dedicated to serving a purpose larger than themselves. when i served, i did four deployments overseas. in 2003, i came back from a last deployment in iraq, coming back from the al-qaeda targeting cell. when i came home i went to bethesda naval hospital to visit with the returning marines.